Calculating-machine.



- Patented Oct. 28, I902. J. T. HOWlE-SON.

cALcuLAms cums.

(Applimfian filed Doc. 90. 1901.)

8 Sheets-Sheet I.

(No Model.)

m w w H 3 fig Z Witueouo m. 7|2,3;a| Patented Oct. 28, I902.

J. T. HOWIESON.

CALCULATING MACHINE.

Application filed Dec. 90, 1901.)

(No Model.) 8 Sheets-Sheet 4.

3] mm" to:

nu: Noam "was co monxumo, wumuovou, 04 c,

'No. 7|2,38l. Patented Oct. 28, I902. J. T. HOWIESON.

CALCULATING MACHINE.

(Applicnion filed Doc. 80, 1901. (No lpdel.) 8 Sheets-Shut 8.

M m I 4/ U i) UP I l "W.

l B j j 714M100 Q. W'M

Tm: m min co. momma. wimmou. n. c.

UNITED STATES PATENT OFFICE.

JOHN T. IIOWIESON, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO FRANKSPIEKERLWIAN, OF PHILADELPHIA, PENNSYLVANIA.

CALCULATING-MACHINE.

#:IEltGIFICATION forming part of Letters Patent No. 712,381, datedOctober 28, 1902.

Application filed December 20, 1901. Serial No. 86,699. (No model.)

To all whom, it may concern:

Be it known that 1, JOHN T. HowrnsoN, a citizen of the United States,residing at New York, in the county of New York, State of New York, havein vented certain new and useful Improvements in Calculating-Machines,of which the following is a description, reference being had to theaccompanying drawings and to the figures of reference marked thereon.

My invention relates to calculating devices and is especially designedand intended to be used in connection with oras an attachment to atype-writing machine, though it embodies features of construction andcombination of elements applicable to key-operated calculating-machinesgenerally and is capable of use separate from a type-writing machine.

As an attachment for type-writing machines it comprises a device adaptedto be readily connected to the frame of a type-writing machine andcarrying calculating mechanism adapted to be operated by the numeralkeysonly when the paper-carriage has reached a predetermined point in itstravel, the numeral-keys being capable of operation at any time duringthe travel of the paper-carriage other than a particular predeterminedseries of spaces without effecting operation of the calculatingmechanism. The fact that except at the predetermined point in themovement of the carriage the numeral-keys, it operated, do noteifectmovement of the calculating mechanism is of particular importance,as in the form of keyboard commonly used the typebar operated by eachkey carries two characters, the typebars operated by the nu meral-keysfrom 2 to 9 commonly carrying punctuationmarks, as well as a numeral,and the l and 0 being the lower-case l and the upper-case 0,respectively, so that it is necessary that these keys be capable ofoperation without effecting the movement of the calculating mechanism,except while the machine is printing the numbers which it is desiredshould form the basis of the calculation.

The device further comprises mechanism by which in writing numberscommas may be printed at proper places to point off and in writingnumbers representing dollars and cents or other denominations periods orother marks may be printed at proper places without eifecting theaccuracy of the calculation made by the device.

Special features of construction of my invention permit by a slightadjustment the printing of entire lines without the operation of thecalculating mechanism and also permit the calculating mechanism to bereadily disconnected from the key-levers of the machine.

The device is primarily intended to add numbers as they are written incolumn by the machine and to show the total of the numbers so writtendirectly in front of the operator; but it is so constructed as to becapable of use also for subtraction, as well as for multiplication anddivision.

With these objects in view and without limitation of the invention tocalculating devices for use in connection with or as attachments totype-writing machines my invention consists in the construction andcombination of elements hereinafterparticularly pointed out in theclaims.

.Referring to the drawings, Figure l is a perspective view showing thecalculating device applied to a type-writing machine of the ordinarytype. Fig. 2 is a perspective View showing, on an enlarged scale, theattachment carried by the paper-carriage by which the registeringdevices are thrown into position to be operated. Fig. 3 is a front viewof the operating mechanism, the front plate of the machine and theconnection with the typewriter keys being removed. Fig. at is a rearview of the machine, part of the mechanism being removed. Fig. 5 is aperspective view showing the tripping devices detached. Fig. (5 is afront view of the machine. Fig. 7 is an end view of the machine. Fig. 8is a crosssectional view, on an enlarged scale, showing the trippingdevices and their connection with the actuating mechanism for theregistering-wheels. Fig. 9 is a cross-sectional View showing theoperating-lever and its connections, looking toward the left end of themachine. Figs. 10 and 11 are cross-sectional views showing the actuatingdevices for the registering-wheels at the different points in theiroperation looking toward the left of the machine.

Figs. 12 and 13 are similar views looking toward the right of themachine. Fig. 14 is a front view with part of the mechanism removed,showing the stop-arms and the means for operating them. Fig. 15 shows aplan and end view of the pawl 53. Fig. 16 shows similar views of thepawl-carrier 51. Fig. 17 is a cross-sectional view of the bearing-pieceon which the devices for actuating the registering-wheels are carried.Fig. 18 shows a side and end view of the cam-plate 55. Fig. 19 shows aside and end view of the pawl-carrier 52. Fig. 20 shows in section themanner in which the operating-lever is carried. Fig. 21 shows incross-section the lever which carries the locking-bail. Fig. 22 is asectional view showing, on an enlarged scale, the bearing-piece 50 andthe devices carried by it. Fig. 23 is a front View showing thefull-stroke mechanism. Fig. 24 is a sectional view showing the samemechanism. Fig. 25 is a front view showing the registering-wheels andcarrying mechanism. Figs. 26 and 27 are cross-sectional views showingthe connections for operating the registering-wheel of higherdenomination in the operation of carrying. Fig. 28 is a front view ofthe camplate 55 and the connection for lifting the carrying-pawls.Fig.29 shows in cross-section and plan View the collar connecting theshaft 27 with the shaft 15. Fig. 30 shows in crosssection and plan thedouble arm-carrying pawl. Fig. 31 shows in side View and crosssectionone of the registering-wheels with its attachments. Fig. 32 shows inside and front view the detent-pawl. Fig. 33 shows in side and frontview the upwardly-extending arm carried by the guide-plate 85. Fig. 31is a sectional view similar to Fig. 22, but extended to show a completegroup of the devices carried on the sleeve 11. Fig. 35 is a plan view ofthe guide-plate, and Fig. 36 is a detail view showing the segmental rackand its connections. 1

Referrlng to the drawings, 1 indicates the frame of a type-writingmachine of the type commonly in use, known as the Remington type, havinga keyboard 2, of the type commonly known as the universal keyboard,having the numeral-keys 2 to 9, inclusive, arranged in the rearmost rowand having the L key (the lower-case 1 being used for the numeral l) inthe second row and the 0 key (the upper-case O'being used as the numeral0) in the third row.

3 indicates the paper-carriage of the typewriting machine.

Directly above and in rear of the keyboard and secured, preferably, tothe top plate 4 of the frame are the end plates 5 of the calculatingdevices. For convenience in attaching them to the top plate these endplates may have their ends bent over, as shown at 5. These end platesare connected by the rods and shafts hereinafter referred to and supportthe working parts of the device which embodies my invention. A frontplate 6,

preferably made in two parts 6 and 6", eX- tends from one of these endplates to the other and is removably secured thereto in any convenientmanner.

Journaled in the end plates 5 is a main shaft 7. Preferably at one endthe main shaft is provided with a spring 8, (shown in Fig. 4,) by whichit is returned to normal position after it has been rocked on itsbearings in the manner and for the purpose hereinafter described.

Carried by the main shaft 7 are a number of radial arms 9, all in thesame plane and all of substantially the same length. These radial arms9, as hereinafter described, form an essential part of the mechanism bywhich the registering-wheels are operated. These radial arms arepreferably made slightly adjustable, being carried for this purpose inholes drilled in the main shaft 7, as shown in Fig. 8, and are held inadjusted position by means of set-screws 10.

Surrounding the main shaft and concentric therewith,bnt not in contacttherewith,is a stationary sleeve 11, the ends of which rest in circularrecesses 12 in the end plates 5. This sleeve is provided with a seriesof slots 13, corresponding in number and position to the radial arms 9and of sufficient length to permit the movement of these arms which theymust have to effect their function of moving the actuating devices forthe registeringwheels. The sleeve 11 is also provided with a series ofopenings 14 to permit access to the set-screws 10. On this sleeve 11 aresupported, so as to rock freely thereon, the actuating devices by whichmovement is transmitted to the radial arms (land by which the movementof these radial arms is transmitted to the registering-wheels.

15 is a shaft or rod supported by the endplates 5 and carrying theregistering-wheels 16. These registering-wheels are supported by andturn freely on the rod 15 and are each provided with a pinion 16. Therod 15 is not intended to rotate upon its axis, except as hereinafterdescribed for the purpose of resetting the registering-wheels to zero,as hereinafter described.

To the rear of and preferably slightly above the plane of the rod 15 isa stationary rod 17, which serves to support and form a bearing fortripping devices 18, by which at a predetermined point in the movementof the paperoarriage the actuating mechanism of one of theregistering-wheels 16 is brought into position to be operated by theoperation of any one of the numeral keys of the machine. These trippingdevices comprise an upper portion 19, extending forward immediatelybelow the top plate 4: of the type-writing ma chine in position to bestruck and forced backward by a device carried by the papercarriage, avertical portion 20, a rearwardlyextending horizontal portion 21, asleeve 22 carried on the rod 17 and adapted to rock on said rod in theordinary operation of the mechanism and to be shifted longitudinally ofthe rod when desired. Each of the sleeves 22 carries arearwardly-projecting pin 22, by which the sleeve may be shiftedlongitudinally, as hereinafter described. The tripping mechanism alsoincludes a downwardly-extending arm 23, carried by the rod 17 andarranged to be rocked thereon with the sleeve 22,but heldagainstlongitudinal movement on the rod. These tripping devicescorrespond in number with the registering-wheels 16.

The upper portions 19 of the tripping devices are arranged in a group,preferably near the center of the registering mechanism. One of them,the central one in the construction shown,will be directly above theactuating mechanism controlled by it, so that its horizontal portion 21extends backward in the plane of the upper portion 19 and verticalportion 20. The other tripping devices each have between the verticalportion 20 and the rearwardly-extending portion 21 a horizontal portion24, extending in a direction parallel with the rod 17 to the right orleft, as the case may be, a distance sufficient to bring therearwardly-extending portion 21 in the plane of the actuating mechanismcontrolled by it. The tripping devices at the right of the center willhave their horizontal portions 24 extend to the left, and those at theleft of the center will have their horizon tal portions 24 extend to theright. The upper portion 19 of the tripping device at the extreme rightof the group, being the upper portion 19 first struck by the devicecarried by the papercarriage, will be arranged through the horizontalportion 24 and rearwardly-connected portion 21, connectedwith it, tobring into operative position the actuating devices for theregistering-wheel atthe extreme left, which in the mechanism shown,which has nine registering-wheels, will be, if numbers are to be writtenwithout indications of denominations, the hundred-mil-- lions wheel. Ifnumbers representing dollars and cents are to be written, this wheelwill be the millions-wheel. The tripping device at the extreme left,being the device last struck, will be arranged to bring into operativeposition the actuating devices for the registering-wheel at the extremeright,which will be the units-wheel. The arrangement of these trippingdevices is clearly shown in Figs. 3 and 5.

The downwardly-extending arm 23 has at its upper end a sleeve 25,surrounding the rod 17. These sleeves 25 are preferably of such lengththat they fill the length of the rod and are thus prevented fromlongitudinal movement. The sleeve 22surrounds and rocks with the sleeve25 and is provided with a longitudinal slot 23, which fits over the arm23. The sleeve 22 is thus permitted movement longitudinally of the rodwithout moving the arm 23, and at the same time any rocking of thesleeve 22 rocks the arm 23.

To the rear and above the plane of the rod 'ferent numerals.

15, which carries the registering-wheels, is a stationary rod 27,supported by the end plates 5, on which are so carried as to freely rockthereon the double-armed pawls 28 of the carrying mechanism, which willbe more fully hereinafter described.

Above and in front of the main shaft 7 is a stationary rod 26,carryingdetent-pawls 104.

Below the plane of the rod 15 and near the front of the device is arocking plate 29, pivoted at its ends to the end plates 5, to which aresecured a series of stop-arms 30, each of which is arranged in the pathof one of the segmental racks by which the registeringwheels 16 areoperated, and are adapted through arms 31, also secured to the rockingplate 29,(see Figs. 12and 13,) to be moved into position to stop themovement of the racks to prevent overthrow, as more fully describedhereinafter.

Below the main shaft 7 and preferably toward the front of the device isa stationary guide-rod 32, carried by the end plates 5.

Journaled on a split bushing 11, secured to the sleeve 11, which servesalso as end bearings, so as to rock freely thereon, are a number oflevers 33. (Shown in detail in Figs. 9 and 20.) These levers are nine innumber to correspond with the nine numeral-keys of the type-writingmachine. In order to prevent lateral movement of these levers, they eachhave a double bearing on the split bushing by means of an arm 34,secured to the lever 33. These levers are each arranged in proximity toone of the radial arms 9 and are each provided with a projection 35,preferably on the arm 34:, bent at a right angle and adapted to engagethe rear of one of the arms 9, so as to carry the arm forward with it,rocking the shaft 7. The projection 35 will be positioned on the severallevers at different points corresponding with the unit values of thedif- The lever or the arm 34, as the case may be, carries, in additionto the projection 35,2. rearwardly-extending arm 36, adapted to engagethe under side of a lockingbail 89, hereinafter described, and carriesalso a downwardly-extending arm 37, adapted to contact with theguide-rod to stop further upward movement of the lever. The arms 36 and37 are in the same plane as the part on which they are carried. Thelever-carries also a projection 38 bent at right angles and perforatedfor the attachment of a spring 39, by which the lever is returned toplace after being depressed.

Pivotally connected to each of the levers 33 V at 40 is a link 41,connecting the lever with the key-lever of one of the numeral-keys ofthe type writing machine, so that as the numeral-key is depressed toprint the lever 33 connected with it will also be depressed, causing, asthe projection 35 comes in contact with the radial arm 9, the main shaft7 to be rocked through a greater or less arc.

The link 41 is preferably made in two parts 2 and 13, as shown, the twoparts having a &

screw connection 44 for the purposes of adjustment. The lower part 43 isprovided at its lower end'with an open slot 45, adapted to fit a pin 46,carried in any convenient manner by the key-lever of the machine. Thepart 43 is preferably also provided with a slot 47, with which a rod 48,carried by levers 49, engages for the purpose of locking the link out ofconnection with the type-lever when desired.

In the ordinary use of the type-writing machine, even when the levers 33are connected to the numeral-keys, these keys may be operated withouteffecting any movement of any part of the registering mechanism exceptthe depression of the levers 33 and the rocking of the main shaft.

The levers 33 are extended forward to form operating-handles 33, bywhich they may be operated independently of the type-writing keys.

The devices by which the rocking of the main shaft is caused to actuatethe registering mechanism are arranged in groups corresponding in numberwith the registeringwheels 16. Each of these groups comprises abearing-piece 50, supported by and turning freely on the sleeve 11, apawl-carrier 51, arranged to rock on the sleeve 11, a pawlcarrier 52,arranged on the bearing-piece, the pawl-carriers 51 and 52, carrying,respectively, pawls 53 and 54, a cam-plate 55 between the pawl-carriersin proximity to the pawl-carrier 51, arranged to have vertical movement,but not to have rocking movement and a segmental rack 56 in proximity tothe pawl-carrier 52 and arranged to have both vertical and rockingmovement. In its rocking movement this rack moves with the pawlcarrier52 in both forward and return movement, and in its vertical movement itmoves independently of this pawl-carrier. In both its movements it isindependent of the pawlcarrier 51.

The bearing-piece 50 has formed thereon a central disk or shoulder 57and on one side thereof a bearing 58 for the cam-plate adapted to turnfreely within an opening in the cam-plate and to permit and guide itsvertical movement. It also has on the opposite side a non-circularportion 59, adapted to fit within an opening in the segmental rack 56and to permit its vertical movement without rocking movement relative tothe bearing-piece. The pawl-carrier 52 is supported on a portion 60 ofthe bearing-piece and is secured to the bearing-piece by riveting orotherwise. The several elements carried by the bearing-piece are heldtogether between the pawl-carrier 52 on one side of the group ofelements and by a washer 61, riveted or otherwise secured to thebearing-piece, on the other side.

The pawl 53 is pivoted to a rearward extension 62 of the pawl-carrier 51and is so arranged that its forward hooked end 63 is in the plane of oneof the arms 9, so that when depressed it will be engaged by the end ofthis arm. A spring 64, secured at one end to a projection 65 on thepawl-carrier, presses by its free end against the rear end of the pawlbelow its pivot-point, so that the forward end of the pawl is normallyraised out of engagement with the arm 9.

The pawl 53 has at a point forward of its pivot a rearwardly andupwardly extending finger 66. When the registering devices are in theposition of rest, this finger 66 lies directly in the path of andpreferably in contact with the depending arm 23, so that the forwardrocking movement of this arm will cause the pawl to rock on its pivot,depressing its forward hooked end 63 into position to be engaged by thearm 9, so that as the arm is rocked forward it will carry the pawl andits pawl-carrier forward with it.

The pawl-carrier 51 carries on the side next the cam-plate 55 a roller67 and has on its front edge a projection so positioned as to beimmediately behind the end of the arm 9 when it is engaged by the hookedend 63 of the pawl and has also a rearwardly-extending finger 79,adapted to strike the finger 73 of the cam-plate 55 on the returnmovement of the pawl-carrier, and thus to stop it in proper position.

The cam-plate 55 has its upper edge curved, as shown in detail in Fig.18, this edge being bent over toward the pawl-carrier 51 to form aflange 68. The rear end of this flange is bent upward, as shown at 69.The cam-plate is provided with an opening 70 to fit over thebearing-piece and in an extension has an opening 71 to fit over theguide-rod 32. The openings 70 and 71 are of such form as to permit thecam-plate to move freely in a vertical direction.

When the registering devices are in a position of rest, the roller 67 ofthe pawl-carrier 51 lies immediately in rear of the upwardly-bent end 69of the flange'of the camplate. As the pawl-carrier is moved forward bythe action of the arm 9 after the pawl 53 has been caused to engage itby depending arm 23 this roller 67 will as it comes in contact with theend 69 cause the cam-plate to be lifted until the roller can passbeneath the main portion of the flange 68. As the pawlcarrier continuesits forward movement the roller 67 will sustain the cam-plate in itsraised position. The cam-plate is also provided with a rearwardextension which carries two fingers 72 and 73, bent at right angles tothe main portion of the cam-plate and extending in opposite directions,the finger 72 being above and to the rear of the finger 73. The finger72 is of sulficient length to extend past the segmental rack 55 into theplane of the pawl 54 of the pawl-carrier 52, and when the devices are inposition of rest the end of this finger is immediately below thetailpiece 82 of the pawl 54, so that as the cam-plate is lifted it willcause this pawl to turn on its pivot to depress its forward end. Thefinger 73 lies in the plane of movement of the pawlcarrier 51 and formsa stop against which the projection 79 on the pawl-carrier strikes toprevent its further rearward movement after it has returned to position.The segmental rack 56 carries on the side next the cam-plate a roller74, so placed as to ride upon the flange 68. The rack has an openingformed therein adapted to fit over and to slide on the noncircularportion 59 of the bearing-piece and has at its lower end means forattachment of a spring 76, by which the rack is drawn downwardly andturned to its rearmost position, the lower end of the spring 76 beingsecured to a stationary rod 77. The rack has on its upper edge ten teethadapted when raised into operative position to mesh with the teeth ofthe pinion 16 of the registeringwvheel 16. The pawl-carrier 52 issecured by a rivet or otherwise to thenon-circular portion 59 of thebearing-piece. To its upper portion is pivoted the pawl 54. The forwardportion of this pawl is of substantially the same shape as butslightlylonger than the corresponding portion of the pawl 54 and has thehooked end 81, adapted to be engaged by the upper end of an arm 9. Thepawl has a tailpiece 82, which normally rests directly above the finger72 of the cam-plate, as above stated. A spring 83, secured at its lowerend to the pawl-carrier, bears at its free end against the rear end ofthe pawl, holding the forward end of the pawl normally raised.

The pawls 53 and 54 are each provided forward of their pivots with anupwardly-extending arm 84, adapted to bear against the under side of acurved guide-plate 85, which is secured at its ends to the end plates 5,so that as the pawls move forward their forward ends are prevented frombeing raised out of engagement with the arms 9. From this description itwill be seen that by pressing rearward the upper end of one of thetripping devices the depending arm 23 will be swung forward against theprojection 66 of the pawl 53, depressing the forward end of the pawlinto position to engage one of the arms 9. As one of the numeral-keys isdepressed, drawing down the lever 33, the main shaft, with its arms 9,will be rocked by the action of the projection 35 of the arm 31L againstthe arm 9, with which it is adapted to contact, and the arm 9, lying inthe plane of the pawl 53, will engage the hooked end 63 and draw thepawl and with it the pawl-carrier 51 forward. As the pawl-carrier 51moves forward the roller 67, coming in contact with the under side ofthe inclined end 69 of the flange 68, will cause the cam-plate to movevertically upward, lifting with it, through the roller 71, the segmentalrack 56. At the same time the finger 72 of the cam-plate lifts thetailpiece of the pawl 5t, depressing its hooked end 81 into the path ofthe arm 9, which lies in the plane of this pawl. The further forwardmovement of this arm 9 carries the pawl 54, its carrier 52, and thesegmental rack 56 forward to effect the rotation of theregistering-wheel 16. As the lever 33 is depressed by the depression ofthe numeral-key a pin or screw 86, carried by it, enters the open slot37in the arm 31 and continues until it is stopped in the operation ofthe typewriting machine by the striking of the type bar against theplaten or in the operation of the calculating-machine as a separatedevice against the end of the slot. The slot 87 being cam-shaped, thepin or screw causes the arm 31, and with it the rocking plate 29, towhich the arm is attached, to rock on its pivots to carrv the stop-arm30 into the position to strike the forward edge of the segmental rack 56to stop it at the completion of its movement. The shape of the cam-slot87 in the arm 31 will differ for the several arms corresponding to thedilferent numeral-keys, so as to move the stop-arm the distancenecessary in each case. For instance, the slot in the arm 31corresponding to the 9 key will be of such shape that the stop-arm 30will meet and stop the segmental rack only when nine of the teeth havesuccessively acted upon the teeth of the pinion 16 to turn theregistering-wheel nine spaces. The slot in the arm 31 corresponding tothe 1 key will be of such shape as to quickly rock the plate 29, so thatthe stop-arm 30 will meet and stop the segmental rack when it has causedthe registeringwheel to turn through one space. As the full stroke ofthe lever 33 is completed it acts, through a linger36, to release thelocking-dog of a full-stroke device, so that on the release of thenumeralkey the several elements are free to resume their normalposition. This return to normal position takes place as follows: Themain shaft 7, with the arms 9, is returned to normal position by thespring 8. As the arm 9, which was engaged by the hooked end 63 of thepawl 53, returns under the force of the spring Sit strikes theprojection 78 of the pawl-carrier51, and thus causes the pawl-carrier51, with its pawl 53 and its roller 67, to return with it, the roller 67being thus carried backward away from beneath the flange 68 of thecam-plate. The segmental rack is momentarily held in its advanceposition, as its teeth are still in engagement with the teeth of thepinion 16 of the registering-wheel 16, which is held against backwardmovement by the detent-pawl 10%. As soon, however, as the roller 67 iscarried back from beneath the flange 68 of the carnplate the camplate,being no longersupported against the force of the spring 76, drops, andwith it the segmental rack drops, and as its teeth are then out of meshwith the teeth of the pinion 16 it is instantly returned to normalposition by the force of the spring 76.

Extending from one end plate 5 to the other is a locking-bail 89, whichforms part of the device by which a full stroke of the lever 33 isinsured. This bail is supported at its ends by rearward extensions 92 ofbail-supporting levers and 91, which are carried by and rock freely onthe sleeve 11.

One of these bail-supporting levers, preferably that at the left of themechanism indicated by referencenumeral 90, is provided with adownwardlyextending finger 93, adapted to strike against the rear of therod 32 to prevent the hail from d roppin g below its normal position.The bailsupporting-lever 91, preferably arranged at the right of themechanism, is provided with a forwardly-extending finger 94 and with aprojection 95 in rear of its bearing on the sleeve 11. Pivoted to theend plate 5 above and forward of the main shaft 7 and preferablydirectly above the rocking plate 29 is swinging detent-lever 96. Alsopivoted to the end plate 5, but at a point above and to the rear of themain shaft 7, is a toothed dog 97. A spring 98, connected at one end tothis toothed detent above its center and at the other end to theswinging detent-lever 96, tends to press the forward end of the dog 97downward and to draw the lower end of the detent-lever 96 rearwardagainst the endof the finger 94.

The rocking plate 29 is provided with an upwardly-extending arm 99,havingits upper end toothed to engage the teeth of the toothed dog. Asthe rocking plate 29 is rocked by the action of the pin or screw 86 ofthe lever 33 on the cam-slot 87 the teeth of the arm 99 will move alongthe under surface of the dog 97 and by engaging the teeth of this dogwill be prevented from moving backward until the dog is raised. Therocking plate 29 and the arms 30 and 31 carried by it will consequentlybe prevented from resuming normal position until the dog 97 is raised torelease the arm 99. As the lever 33 completes its stroke its rearwardprojection 36 will strike the under side of the bail 89, lifting it andthrough the extension 92 of the bail-supporting levers and 91 causingthese levers to rock on the sleeve 11. As the bail-supporting lever 91is thus rocked its projection 95 strikes a shoulder on the toothed dog97 below and forward of its pivot. This raises the forward end of thedog against the force of the spring 98 and releases the lever 99,permitting the rock-shaft to resume'its normal position. At the sameinstant that the projection 95 on the bail-su pporting lever strikes theshoulder 100 on the dog 97 its finger 94 passes below a shoulder 101 onthe detentlever 96, by which it is engaged, thus holding thebail-carrying lever in such position that it in turn holds the dog 97 inits raised position out of engagement with the teeth of the arm 98. Theparts are held in this position until the rocking plate, with its arms30 and 3l,resumesits normal position. As it resumes its normal positiona stop 102, carried by the arm 99,preferably made adjustable, as shown,strikes the lower end of the detent 96, throwing it forward, releasingthe finger 94 and permitting the bail-carrying levers and the dog 97 toresume their normal positions.

By the above construction it will be seen that after the lever 33 hasbegun its movement it cannot be brought back to its normal positionexcept by continuing its movement to completion of its full stroke.

The registering-wheel 16 carries on the side opposite to the pinion 16 aratchet-wheel 103, with which a detent-pawl 104 engages to preventbackward movement of the registeringwheel after it has once beenrotated. For the purpose of carrying from the units-wheel to thetens-wheel, from the tens-wheel to the hundreds-wheel, and so on, Iprovide the carrying mechanism, which I will now describe.

Each of the registering-wheels except the highest-is provided on theside toward the next higher wheel with a radial pin 105, preferably bentto the form shown in Fig. 31, and the periphery of the wheel is cutaway, as shown in Figs. 30 and 31, to form a cam-surface, as shown. Eachof the registeringwheels except the units-wheel is provided on the sameside as the pinion 16' with a ratchetwheel 106, secured'to the pinion.

Carried by the stationary rod 27, so as to rock freely thereon, isadouble-armed carrying-pawl 28, the two arms 107 and 108 of which arearranged, respeotively,in the planes of the radial pin 105 of a lowerregisteringwheel and in the plane of the ratchet-wheel 106 of the nexthigher registering wheel. The arm 107 is forked, as shown in Fig. 30,the end of its lower finger 109 lying in the path of the pin 105 and itsupper finger 110 being in poisition when the finger 109 is depressed bythe pin 105 to ride upon the cutaway portion of the registering-wheel,and as the registering-wheel continues its rotation the finger 110,riding up upon the main portion of the wheel, will raise the lowerfinger 109 to normal position. The arm 108 of the carrying-pawl haspivoted to it at its forward end the forward end of a pawl 111, the rearend 112 of which is of sufiicient weight to insure the pawl swingingforward, as shown in Figs. 26 and 27, to engage the ratchet-wheel 106 ofthe higher registering-wheel. The tooth 113 of the pawl 111 is made withparallel front and rear edges, as shown in Figs. 26 and 27. Secured tothe guide-plate 85 is an upright arm 114, having at its upper end aprojecv tion 115, so shaped that it forms a guide for the tooth 113 ofthe pawl 111, the tooth 113 when brought down to advance the higherregistering-wheel one space fitssnugly between the ratchet-wheel 106 andthis projection and is thus prevented from moving the higher wheel morethan the one space necessary for carrying. 'If the lowerregisteringwheel is further rotated, the finger 110 will be raised as itpasses OK the cut-away portion of the wheel, and the arm 108 and itspawl 111 will be raised, leaving the higher registering-wheel free to beagain rotated. If, however, as will ordinarily be the case, it isnecessary to rotate the higher registeringwheel before the lower wheelhas'been rotated sufficiently to lift the pawl 111, it will be necessaryto provide other means for lift- I secure to the rod between the arms107 and 100 a collar 117. (Shown in detail in Fig. This collar is firmlyclamped on the rod, as shown, and is provided with an extension 118,bent at right angles and fitting over the collar 119 of the rod on whichthe registeringwheels 16 are carried.

It will be understood that thee-am-plate 55 of the units-registeringmechanism will not need to be provided with the upright arm 115.

For the purpose of disconnecting the registering mechanism as a wholefrom the typewriter keys the levers 49, which, as above described, carryat their lower ends a rod 48, which rests in the slots 47 of the linkswhich connect the levers 33 with the respective numeral-keys, areprovided with a rearwardextending arm 118, which is arranged to beengaged by a ratchet in the latch 119 when the links are pushed backwardto disconnect them from the numeral-keys. This latch is drawn forward bya spring 120, which also serves to draw the lever 49 forward. An arm 121on the lever 49 by contacting with the rod 32 prevents forward movementof the lower end of the lever beyond the point at which the lower endsof the links are in operative engagement with the numeral-keys.

In Writing numbers to be added it is usually found desirable to insertcommas to point off into periods of three figures each, and in writingnumbers representing dollars and cents it is desirable to insert aperiod between the dollars and the cents. For the purposeofadapting mydevice forthispurpose I provide means by which the tripping devices 18maybe shifted longitudinally of the calculating mechanism. The sleeves22, as before described, are each provided with a rearwardly-extendingpin 22, and these pins are arranged to be engaged by open-ended slots122 in plates 123 121 125, which are carried by levers 126, one or bothof which may be forwardly extended to enable the plates to be readilymoved vertically. One of these levers 126 is arranged at each end of thecalculating device and is pivotally mounted on the shaft27. One of theseplatesas, for instance, plate 123has its slots 122, arranged as shown inFig. 4that is, with the two slots at the right of Fig. 4, (the left ofthe calculating mechanism, since Fig. at is a rear view) being inclinedaway from the center, both at the same angle, with the next three slotsvertical, with the next three slots inclined in the opposite directionto that of the first two slots and all inclined at the same angle, andwith the last slot inclined in the samedirectiou,butatagreaterangle.When this plate is pressed downward by raising the forward end of thelevers 126, its slots, engaging the pins 22', will shift the sleeves 22of the tripping devices which control the lowest two registering devicesaway from the others, so as to open a space between them and the others,in which space should be printed the period separating the twocents-columns froin the dollars. The next three sleeves will not beshifted, the slots being verticall The following three sleeves will beshifted to open a space for the insertion of a comma between thehundreds-figure and the thousands, and the last sleeve will be shiftedsufficiently to permit of the insertion of a comma between the hundredthousands and the millions. The plate 121 has the first three of itsslots 122 parallel and inclined away from the center, so as tosimultaneously shift the tripping devices of the lowest threeregistering devices a sulficient distance to permit a comma to beinserted between the hundreds and thousands, has its next three slotsvertical to retain the tripping devices of the thousands, ten thousands,and hundred thousands registering devices in normal position, and hasthe last three slots all inclined at the same angle in a directionopposite to the direction of the first three slots in order to shift thetripping devices of the millions, ten millions, and hundred millionsregistering devices a suflicient distance to permit a comma to beinserted between the hundred thousands and the millions. The third plate125 has its slots 122 equal distances apart at their upper ends, buthaving their open ends sufliciently wide to engage the pins 22 of thesleeves 22 in any position to which they may have been shifted, so thatwhen this plate is depressed it will return the sleeves and the trippingdevices to normal position. In the use of these shifting devices afterthe plate 123 01- the plate 124 has been depressed to arrange thetripping devices for dollars and cents or for pointing off the plate 125should be depressed to return them to normal posit ion before the otherplate is depressed.

On the front plate of the calculating mechanism is preferably arranged aseries of guideplates 127, 128, and 129 for holding the front ends ofthe tripping devices in position and preventing them from being movedsidewise by the tripping-cam carried by the carriage. These plates areslotted, as shown, the slots being arranged to correspond with the slotsof the plates 123, 124, and 125. These guideplates are placed one infront of the other and have end slots 130, through which handscrews 131extend and by which they may be c1amped in position. They are eachpreferably provided with downwardly-extending projections 132, by whichthey may be readily raised or pulled down.

Carried by the paper-carriage is a cam 133, arranged when in operativeposition to strike as the carriage travels the end 19 of the severaltripping devices 18 in succession. This cam is preferably formed on theend of arm 134, hinged to a plate 135, which is supported on acarrier-bar 136, secured by the bent arms 13.7 to the paper-carriage. Ascrew 138, carried on the plate 135 and bearing against the carrier-bar136, forms a convenient means for adjusting the position of the plateand the cam 133. The plate 135 is preferably provided with a pointer139, so arranged as to slide upon the indicator-scale of the machine toenable the cam 133 to be readily set at the proper point. A spring 140,secured at its upper end to the plate 135 and pressing outward at itslower end against a portion 141 of the hinged arm 134 above its pivot,tends to press the cam 133 inward, so that it will be in position tostrike the ends 19 of the trippingdevices. Ascrew142,extendingthroughthe arm 134 below the pivot and bearing against the plate 135, serveswhen screwed inward to force the cam 133 away from its operativeposition against the force of the spring 140.

The carrier-bar 136 may be of any length desired and may be supportedfrom the papercarriage in any convenient way, it being essential onlythat it so support the cam 133 that this cam in the operation of themachine will be in position to strike the ends of the tripping deviceand cause them to throw the registering devices into position to beoperated when one of the numeral-keys is operated.

In the use of the machine the cam 133 will be so set on the carrier-barthat it will come in contact with and press back the first of thetripping devicesthat is, the tripping device farthest to the rightas thepoint on the paper carried by the paper-carriage comes in position tohave printed thereon the first figure of the number to be Written, andthe successive numbers will be written in column beneath the first,units coming under units, tens under tens, &c. As the successive numbersare written the total will appear on the registering-wheels. When it isdesired to write the total, by turning the screw 142 the cam 133 will beforced out of operative position and the total may be written withouteffecting any further operation of the registering devices. Theregistering-wheels may then be reset to zero, or, if desired, the totalmay be carried over to the top of the next sheet and the addingoperation continued.

The resetting of the registering-wheels to zero may be efiected by anywell-known device. In the preferred form of device for this purpose Iprovide the rod 15 with a series of pins 143, one for each of theregisteringwheels, normally out of contact with the radial pins 105, butcapable of being brought into contact with these radial pins when therod 15 is moved longitudinally. For moving the rod 15 longitudinally andfor rotating it I provide it with a milled head 144. The rodtype-writing machines of other. types.

is also provided with a pin 145, adapted to enter a notch 146 in the endplate 5, and the 'rod is also provided with a spring 147, bearing at oneend against the inner side of the end plate and at the other end bearingagainst a pin 148, carried by the rod. In order to prevent longitudinalmovement of the registering-wheels,sleeves 149 are interposed betweenthem and between the first and last of the se- I ries and the endplates. The front plate 6 is preferably made in two parts 6 and 6", andthese parts are secured in any convenient manner to the end plates 5.The lower part 6 of the front plate is provided with slots for thelevers 33 and also has a slot 153, through which extends the'end of thetoothed dog 97 indicator 158 is mounted, having at one end a milled head159 for rotating it. This indicator carries on one face at pointsbetween the third and fourth and between the sixth and seventhregistering-wheels commas and on another face carries between the secondand third registering-wheels a period and be tween the fifth and sixthregistering-Wheels a comma.

The cam 133 may be carried by any moving part of the machine other thanthe carriage, if preferred. In using the device as a calculating-machineseparate from the typewriting machine the tripping devices may beoperated in succession by any convenient device and, if desired, may beoperated in the opposite order from that in which they are operated bythe carriage of the typewriting machine.

I have shown the calculating-machine arranged on the front of thetype-writing machine and immediately above and in rear of the keyboard,and while I regard this as the most desirable position, as theregisteringwheels are thus in convenient position to be seen by theoperator, I do not desire to be understood as limiting my invention tothis particular arrangement, as the machine may be placed in anyrelation to the operating parts of the type-writing machine so long asit is so placed that it may be operated by the typelevers,-and while myinvention is shown in connection with a particular type of typewritingmachine it may evidently without material change be adapted for use withSo, also, while I have indicated the preferred arrangement of thetripping devices it will be understood that these devices may. bearranged to be operated by a device carried on any moving part of thetype-writing machine and may'extend into the path of such device,

whether such device be carried above or below the top plate of themachine or in the front or rear of the carriage.

It will be obvious that many changes may be made in the form andarrangement of the several elements of the machine without departingfrom the spirit of the invention.

Having thus described my invention, what .I claim as new, and desire tosecure by Letters to be operated by its operating means for shifting theposition of the tripping device and means for actuating the trippingdevice; substantially as described.

2. In a calculating-machine the combination of a registering-wheel andmechanism for actuating it, normally disconnected means for operatingthe mechanisnq for actuating the registering-wheel, a tripping devicearranged, when operated, to throw the mechanism for actuating theregistering-wheel into position to be operated by its operating means,and adjustable means for automatically actuating the tripping device;substantially as described.

3. In a calculating-machine, the combination of a series ofregisteringwheels and mechanisms for actuating them, means forseparately operating the mechanisms for actuating the registering-wheelnormally disconnected therewith, a series of tripping devices, eacharranged, when operated, to throw one of the mechanisms for actuatingthe registering-wheel into position to be operated by its operatingmeans and a common means for actuating the several tripping devices;substantially as described.

4. In a calculatingunachine, the combination ofaseriesofregistering-wheels and mechanisms for actuating them, means forseparately operating the mechanisms for actuating the registering-wheel,normally discounected therewith, a series of tripping devices, eacharranged, when operated, to throw one of the mechanisms for actuatingthe registering-wheel into position to be operated by its operatingmeans, and a common means for automatically actuating the trippingdevices in succession; substantially as described.

5. In a calculatiug-machine, the combination of a series ofregisteringwheels and mechanisms for actuating them, means forseparately operating the mechanisms for actuating the registering-wheelsnormally disconnected therewith, a series of tripping devices, eacharranged, when operated, to throw one of the mechanisms for actuatingthe registering-wheels into position to be operated by its operatingmeans, means for automatically actuating the trippingdevices insuccession and means for shifting the position of one or more of thetripping devices relative to the others; substantially as described.

6. In a calculating-machine, the combination of a main shaft, akey-lever operating to rock the main shaft, a registering-wheel andmechanism for actuating it and a tripping device arranged, whenoperated, to throw the mechanism for actuating the registeringwheel intoposition to be operated by the rocking of the main shaft; substantiallyas described.

7. In a calculating-machine, the combination of a main shaft, a seriesof key-levers each operating to rock the main shaft, a registering-wheeland mechanism for actuating it and a tripping device arranged, whenoperated, to throw the mechanism for actuating the registering-wheelinto position to be operated by the rocking of the main shaft;substantially as described.

8. In a calculating-machine, the combination of a main shaft, akey-lever operating to rock the main shaft, a series ofregisteringwheels and mechanism for actuating them and a series oftripping devices, ,each arranged, when operated, to throw one of themechanisms for actuating the registeringwheels into position to beoperated by the rocking of the main shaft; substantially as described.

9. In a calculating-machine, the combination of a main shaft, a seriesof key-levers each operating to rock the main shaft, a series ofregistering-wheels and mechanism for actuating them and a series oftripping devices, each arranged,when operated, to throw one of themechanisms for actuating the registering-wheels into position to beoperated by the rocking of the main shaft; substantially as described.

10. In acalcnlating-machine for use in connection with a type-writingmachine, the combination of a main shaft, means connected to anumeral-key of the type-writing machine for rocking the main shaft,aregistering-wheel and mechanism for operating it, a tripping devicearranged, when operated, to throw the mechanism for actuating theregisteringwheel in position to be operated by the rocking of the mainshaft, and means carried by a moving part of the type-writing machine tooperate the tripping device; substantially as described.

11. Ina calculating-machine for use in connection with a type-writingmachine, the combination of a main shaft, means connected to each of thenumeral-keys of the type-writing machine for rocking the main shaft, aregistering-wheel and mechanism for operating it, a tripping devicearranged, when operated, to throw the mechanism for actuating theregistering-wheels in position to be operated by the rocking of the mainshaft, and means carried by a moving part of the type-writing machine tooperate the tripping device; substantially as described.

12. In a calculating-machine for usein connection with a type-Writingmachine, the combination of a main shaft, means connected to a key ofthe type-writing machine for rocking the main shaft, a series ofregistering-wheels and mechanisms foroperating them, tripping devices,each arranged, when operated, to throw one of the mechanisms foroperating the registering-wheels in position to be operated by therocking of the main shaft and means carried by a moving part ofthetypewriting machine to operate the tripping devices in succession;substantially as described.

13. In acalculating-machine for use in connection with a type-writingmachine, the combination of a main shaft, means connected to each of thenumeral-keys of the type-writing machine for rockingthe main shaft, aseries of registering-wheels and mechanisms for operating them, trippingdevices,each arranged, when operated, to throw one of the mechanisms foractuating the registering-wheels in position to be operated by therocking of the main shaft and means carried by a moving part of thetype-writing machine to operate the tripping devices in succession;substantially as described.

14. In a calculating-machine for usein connection with atype-writingmachine, the combination of a registering-wheel, mechanisms foractuating the registering-wheel, means connected with a key of thetype-writing machine for operating the mechanism for actuating theregistering-wheel, normally disconnected therewith, a tripping devicearranged, when operated, to throw the mechanism for actuating theregistering-wheel into position to be operated by its operating means,and means operated by the carriage of the typewriting machine forautomati"a lly actuating the tripping devices; substantially asdescribed.

15. In a calculatingmachine for use in connection with a type-writingmachine, the combination of a series of registering-wheels, mechanismsfor actuating the registeringwheels, means connected with a key of thetype-writing machine for operating the mechanisms for actuating theregistering-wheels normally disconnected therewith, a series of trippingdevices arranged, when operated, to throw one of the registeringmechanisms into position to be operated by the operating means, andmeans operated by the carriage of the type-writing machine forautomatically actuating the tripping devices; substantially asdescribed.

16. In a calculating-machine for use in connection withatype-wri tingmachine, the combination of a registering-wheel, mechanism for actuatingthe registering-wheel, means connected with each of the numeral-keys ofthe type-writing machine for operating the mechanism for actuating theregisteringwheels, normally disconnected therewith, a tripping devicearranged, when operated, to

throw the registering mechanisms into position to be operated by theoperating means, and means operated by the carriage of the type-writingmachine for automatically actuating the tripping device; substantiallyas described.

throw one of the mechanisms for actuating" the registering-wheels intoposition to be operated by its operating means, means operated by thecarriage of the type-writing machine for automatically actuating thetrip ping devices, and means for shifting the position of one or more ofthe tripping devices relative to the others; substantially as described.

18. In a ca l 'pulating-machine for useinconnection with a type-writingmachine, the combination of a series of registering-wheels, mechanismsfor actuating the registeringwheels, means connected with each of thenumeral-keys of the type-writing machine for separately operating themechanisms for actuating the registering-Wheels, normally disconnectedtherewith, a series of tripping devices arranged, when operated, tothrow one of the mechanisms for actuating the registering-wheels intoposition to be operated by its operating means, means operated by thecarriage of the type-writing machine for automatically actuating thetripping devices, and means for shifting the position of one or more ofthe tripping devices relative to the others; substantially as described.

19. In a calculating-machine for use in connection with a type-writingmachine, the combination of a registering-wheel, mechanism for actuatingthe registering-wheel, means connected with a key of the type-writingmachine for operating the mechanism for actuating the registering-wheel,normally disconnected therewith, a tripping device arranged, whenoperated, to throw the mechanism for actuating the registering-wheelinto position to be operated by the operating means, and a devicecarried by the carriage of the typewriting machine arranged to actuatethe tripping device; substantially as described.

20. In a calculating-machine for use in connection with a type-writingmachine, the combination of a registering-wheel, mechanism for actuatingthe registering-wheel, means connected with each'of the numeral-keys ofthe type-writing machine for operating the mechanism for actuating theregisteringwheels, normally disconnected therewith, a tripping devicearranged, when operated, to throw the mechanism for actuating theregistering-wheel into position to be operated by the operating means,and a device carried by the-carriage of the type-writing machinearrangedto actuate the tripping device; substantially as described.

21. In a calculating-machine for use in connection with a type-writingmachine, the combination of a registering-wheel, mechanism for actuatingthe registering-wheel, means connected with a key of the type-writingmachine for operating the mechanism for actuating the registering-wheel,normally disconnected therewith, a tripping device arranged, whenoperated, to throw the mechanism for actuating the registering-wheelinto position to be operated by the operating means, a device carried bythe carriage of the type-writing machine arranged to actuate thetripping device, and means for moving the device carried by the carriageout of position to actuate the tripping devices; substantially asdescribed.

22. In a calculating-machine for use in connection with a type-writingmachine, the combination of a registering-wheel, mechanism for actuatingthe registering-wheel, means connected with each of the numeral-keys ofthe type-writing machine for operating the mechanism for actuating theregisteringwheel, normally disconnected therewith, a tripping devicearranged, when operated, to throw the mechanism for actuating theregistering-wheel into position to be operated by the operating means, adevice carried by the carriage of the type-writin g machine arranged toactuate the tripping device, and means for moving the device carried bythe carriage out of position to actuate the tripping devices;substantially as described.

In a calculating-machine, the combination of a registering-wheelprovided with a pinion, mechanism for actuating the register ing-wheel,comprising a main shaft arranged to rock on its axis, a segmental racknormally out of engagement with the pinion, so mounted as to be movablevertically relative to the shaft and to rotate on an axis concentricwith the axis of the shaft, means actuated by the shaft for raising therack into engagement with the pinion and for moving the rack while inits raised position to rotate the registering-wheel, means for rockingthe main shaft and means for lowering the rack out of engagement withthe pinion and for returning it to normal position; substantially asdescribed.

24. In a calculating-machine, the combinatlon of a registering-wheelprovided with a pinion, means for preventing backward movement of theregistering-wheel, mechanism for actuating the registeringwvhecl,comprising a main shaft arranged to rock on its axis, a segmental racknormally outof engagement with the pinion, so mounted as to be movablevertically relative to the shaft andto rotate on an axis concentric withthe axis of the shaft, means actuated by the shaft for raising the rackinto engagement with the pinion and for moving the rack while initsraised position to rotate the registering-wheel, means for rocking themain shaft and means for lowering the rack out of engagement with thepin ion and for returning it to normal position; substantially asdescribed.

25. In a calculating-machine, the combination of a registering-wheelprovided with apinion, mechanism for actuating the registering-wheel,comprising a rack normally out of engagement with the pinion, meansforraising the rack into engagement with the pinion, means for moving therack while in its raised position to rotate the registering-wheel, meansfor lowering the rack out of engagement with the pinion and forreturning the rack to normal position and a common means for actuatingthe means for raising and the means for moving the rack; substantiallyas described.

26. In a calculating-machine, tlie combination of a registering-wheelprovided with a pinion, means for preventing backward movement of theregistering-wheel, mechanism for actuating the registering-wheel,comprising a rack normally out of engagement with the pinion, means forraising the rack into engagement with the pinion, means for moving therack while in its raised position to rotate the registering-wheel, meansfor lowering the rack out of engagement with the pinion and forreturning the rack to normal position and a common means for actuatingthe means for raising and the means for moving the rack;

substantially as described.

27. In a calculating-machine, the combination of a registering-wheel,provided with a pinion,means for preventing backward movement of theregistering-wheel, mechanism for actuating the registering-wheelcomprising a rack normally out of engagement with the pinion, means :forraising the rack into engagement with the pinion, means for moving therack while in its raised position to rotate the registering-wheel,means, for positively stopping the movement of the rack at apredetermined point, means for lowering the rack out of engagement withthe pinion and for returning the rack to normal position, and a commonmeans for actuating the means for raising the rack, for moving the rackand for moving the stopping means into position to effect its function;substantially as described.

28. In a calculating-machine, the combination of a registering-wheel,provided with a pinion,means for preventing backward movement of theregistering-wheel, mechanism for actuating the registering-wheelcomprising a rack normally out of engagement with the pinion, means forraising the rack into engagement with the pinion, means for moving therack while in its raised position to rotate the registering-wheel, meansfor positively stopping the movement of the rack at a predeterminedpoint, means for lowering the rack out of engagement with the pinion'andfor returning the rack to normal position, means for locking the rackagainst rearward 7 UNI/W movement until'it has completed its movement,and a common means for actuating the means for raising the rack, formoving the rack and for moving the stopping means into position toefiect its function; substantially axis of the shaft, means actuated bythe shaft for raising the rack into engagement with the pinion and formoving the rack while in its raised position to rotate the shaftcarrying the pinion, means for rocking the main shaft and means forlowering the rack out of en-' gagement'with the pinion and for returningit to normal position; substantially as described.

30. The combination of a shaft carrying a pinion, means for preventingbackward movement of the pinion, mechanism for actuating the pinion,comprising a main shaft arranged to rock on its axis, a segmental racknormally outof engagement with the pinion,so mounted as to be movablevertically relative to the shaft and to rotate on an axis concentricwith the axis of the shaft, means actuated by the shaft for raising therack into engagement with the pinion and for moving the rack While inits raised position to rotate the shaft carrying the pinion, means forrocking the main shaft and means for lowering the rack out of engagementwith the pinion 'and for returning it to normal position; substantiallyas described.

31. The combination of a shaft carrying a pinion, mechanism foractuating the pinion, comprising a rack normally out of engagement withthe pinion, means for raising the rack into engagement with the pinion;means for moving the rack whilein its raised position to rotate thepinion, means for lowering the rack out of engagement with the pinionand for returning the rack to normal position and a common means foractuating the means for raising and the means for moving the rack;substantially as described. I

32. The combination of a shaft carrying a pinion, means for preventingbackward movement of the pinion, mechanism for actuating the pinion,comprising a rack normally out of engagement with the pinion, means forraising the rack into engagement with the pinion, means for moving therack While in its raised position to rotate the pinion, means forlowering the rack out of engagement with the pinion and for returningthe rack to normal position and a common means for actuating the meansfor raising and the means for moving the rack; substantially asdescribed.

33. In a calculating-machine, the combination of a main shaft, means forrocking the be operated by the mainshaft; substantially as described.

35. In a calculating-machine, the combination of a main shaft, astationary sleeve surrounding the main shaft, a registering-wheel andmechanism carried by the sleeve and rotatable thereon, arranged to beoperated by the main shaft, and means for rocking the main shaft alsocarried by the sleeve and rotatable thereon; substantially as described;

36. In a calculating-machine, the combination of a registering-wheelprovided with a pinion and mechanism for actuating the registering-wheelcomprising a segmental rack I normally out of engagement with thepinion, provided with a roller, a cam-plate having a flange forming atrack for said roller, means for raising the cam-plate to raise thesegmental rack into engagement with the pinion of the registering-wheeland means for moving the rack to rotate the registering-wheelsubstantially as described.

37. In a calculating-machine, the combination of a main shaft havingradial arms, a registering- Wheel provided with a pinion, mechanism foractuating the registeringwheel, comprising a segmental rack normally outof engagement with the pinion, provided with a roller, a cam-platehaving a flange forming a track for said roller, means for raising thecam-plate to raise the segmental rack into engagement with the pinion ofthe registering-wheel, means for rocking the main shaft and meansoperated by the radial arms of the rock-shaft for raising the cam-platetoraise the segmental rack into engagement with the pinion of theregistering-wheel and for moving the rack to rotate theregistering-wheel; substantially as described.

38. In a calculating-machine the combination of a main shaft havingradial arms,a registering-wheel provided with a pinion, mechanism foractuating the registeringwheel, comprising a segmental rack normally outof engagement with the pinion, provided with a roller, means for raisingthe rack into engagement with the pinion, com prising a cam-plate,having a flange forming a track for said roller, means for raising thecam-plate to raise the segmental rack into engagement with the rollercomprising a pawlcarrier provided with a roller, arranged to engage theunder side of the flange of the camplate, and a pawl adapted to engageone of

